Ironically, if Light’s Defender had %aether it would had supported aether totems, aether jacks and aether stormbox as well.
As for Primal Strike only Ultos comes to mind, and honestly I want Ultos to double down on supporting phys primal strike with either avenger crusher or that phys PS crossbow. Notably I want phys to lightning conversion to be transferred to 5pc set bonus and an equal amount of %phys to %lightning.
As for Savagery - pretty tough request since Lightning Savagery isn’t supported much to begin with, lightning retal aside.
Adding -%aether RR to WD won’t make Shaman an appealing aether class because we have an example of Demolitionist and Inquisitor already - they have -% RR but no strong aether skills or %aether buffs.
If one seriously wants to have Shaman support aether then besides adding native -%aether some sort of aether skill and %aether damage is needed. A beautiful solution would be a transmuter for Wendigo Totem that would change damage type to aether and swap aura to one that would provide %aether damage (similar to how Guardians of Empyrion work). But I doubt something of that magnitude would be considered.